21128212 is an even 8-digits composite number following 21128211
and preceding 21128213 . In scientific notation, it is written as 2.1128212 × 10^7.
The sum of its digits is 19. It has a total of 6 prime factors and 36 positive divisors.
There are 8499456 positive integers (up to 21128212) that are relatively prime to 21128212.
21128212 has 36 divisors, whose sum is 40186300
The reverse of 21128212 is 21282112
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million one hundred twenty-eight thousand two hundred twelve
Scientific notation
2.1128212 × 10^7
Engineering notation
2.1128212 × 10^6
Prime Factorization
2 × 2 × 49 × 17 × 17 × 373
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
621418
Product of the distinct prime numbers
The prime factorization of 21128212 is 2 × 2 × 49 × 17 × 17 × 373.
Since it has a total of 6 prime factors.
6 , 7 , 18 , 86 , 3 , 725 , 1831 , 6837 , 55310 , 45297 , 332861 , 901420 , 3166959 , 1741061 , 24334717 , 63616350 , 813027633 , 38547398 , 5306642984 , 6518617463
n×2
42256424
n×3
63384636
n×4
84512848
n×5
105641060
n÷2
10564106
n÷3
7042737.3333333
n÷3
5282053
n÷5
4225642.4
n2
446401342316944
n3
9.431662197557E+21
n4
1.9927415842237E+29
n5
4.2103066652694E+36
2 √n
4596.5434839671
3 √n
276.45275056539
4 √n
67.797813268328
5 √n
29.172426155722
1 , 2 , 4 , 17 , 34 , 49 , 68 , 98 , 196 , 289 , 373 , 578 , 746 , 833 , 1156 , 1492 , 1666 , 3332 , 6341 , 12682 , 14161 , 18277 , 25364 , 28322 , 36554 , 56644 , 73108 , 107797 , 215594 , 310709 , 431188 , 621418 , 1242836 , 5282053 , 10564106 , 21128212
36 divisors
τ
Total Divisors
36
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21128211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.027777777777778
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
36
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21128212 can be divided by 36 positive divisors.
The sum of these divisors (counting 21128212) is 1, the average is 0.027777777777778.
Base
System
Value
2
Binary
1010000100110010000010100
3
Ternary
1110202102110101
4
Quaternary
1100212100110
5
Quinary
20402100322
6
Senary
2032503444
8
Octal
120462024
10
Decimal
21128212
12
Duodecimal
70aab84
16
Hexadecimal
1426414
20
Vigesimal
6c10ac
36
Base36
ckums
md5
a3f42275363fb53e5c25446f522c99b8
sha1
9daf0d72e4302e4b0d0cad32262f62d0f91d495e
sha256
b382e8e3f5e08a66309cfbcb5c7fbac8162e492bb02bdbaaaf543e776eb23ba4
sha512
121f36f5015bc37757dc721c0f7c81cf86a23705e0a72007d74a6927097ff3eb1f42824e2c3cf2a44e13fefdab0a9d3efcd0e12ea47563c07b0f0598425aeb88
ripemd-160
3e249be0fcec48d5bc6ed41f945aea6519f0fa39
Diameter
42256424
Circumference
132752471.20538
Area
1.4024111775755E+15
Volume
3.9507254227981E+22
Surface area
5.6096447103021E+15
Circumference
132752471.20538
Perimeter
84512848
Area
446401342316944
Diagonal
29879803.959094
Surface area
2678408053901664
Volume
9.431662197557E+21
Space diagonal
36595136.657086
Perimeter
63384636
Area
1.9329745136497E+14
Altitude
18297568.328543
Surface area
1.9329745136497E+14
Volume
1.1115320496256E+21
Height
9959934.6530313